It isn't. Things with ~0 marginal cost end up being free or free-with-ads. Webmail was free before Gmail, OpenOffice was free before Google Docs, MapQuest was free before Google Maps, because that's the market price for those things.
> Nothing else you said is really relevant to the forced sale of Chrome.
Because we're talking about the forced sale of Android. The title of the article is:
> DOJ: Google must sell Chrome, Android could be next
But exactly the same argument applies to Chrome anyway. Google puts DRM in Chrome, allowing third party sites to take a dependency on DRM, and then competing browsers/devices without Google's approval get locked out because users want a browser and device that works with the whole web.
Not to mention the obvious conflict of interest that DRM is used to prevent ad blocking.